Cisco StarOS on ASR 5000 CLI command injection

CVSS Meta Temp Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Cisco StarOS on ASR 5000. Affected is an unknown function of the component CLI. Such manipulation leads to command injection. This vulnerability is uniquely identified as CVE-2018-0217. Local access is required to approach this attack. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco StarOS on ASR 5000 (Router Operating System) (version unknown). Affected by this issue is an unknown function of the component CLI. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the CLI of the Cisco StarOS operating system for Cisco ASR 5000 Series Aggregation Services Routers could allow an authenticated, local attacker to perform a command injection attack on an affected system. The vulnerability is due to insufficient validation of commands that are supplied to certain configurations in the CLI of the affected operating system. An attacker could exploit this vulnerability by injecting crafted arguments into a vulnerable CLI command for an affected system. A successful exploit could allow the attacker to insert and execute arbitrary commands in the CLI of the affected system. To exploit this vulnerability, the attacker would need to authenticate to an affected system by using valid administrator credentials. Cisco Bug IDs: CSCvg29441.

The bug was discovered 03/07/2018. The weakness was disclosed 03/08/2018 with Cisco (Website). The advisory is shared for download at securitytracker.com. This vulnerability is handled as CVE-2018-0217 since 11/27/2017. The attack needs to be approached locally. The successful exploitation requires a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability scanner Nessus provides a plugin with the ID 107095 (Cisco ASR StarOS Multiple CLI Command Injection Vulnerabilities (cisco-sa-20180117-staros / cisco-sa-20180307-staros / cisco-sa-20180307-staros1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (107095) and SecurityFocus (BID 103346†). The entries VDB-112223 and VDB-114218 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 107095
Nessus Name: Cisco ASR StarOS Multiple CLI Command Injection Vulnerabilities (cisco-sa-20180117-staros / cisco-sa-20180307-staros / cisco-sa-20180307-staros1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
01/17/2018 +51 days 🔍
03/02/2018 +44 days 🔍
03/07/2018 +5 days 🔍
03/07/2018 +0 days 🔍
03/08/2018 +1 days 🔍
03/08/2018 +0 days 🔍
03/09/2018 +1 days 🔍
02/17/2023 +1806 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: securitytracker.com⛔
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-0217 (🔍)
GCVE (CVE): GCVE-0-2018-0217
GCVE (VulDB): GCVE-100-114212
SecurityFocus: 103346 - Cisco StarOS for ASR 5000 Series Routers CVE-2018-0217 Local Command Injection Vulnerability
SecurityTracker: 1040466

See also: 🔍

Entryinfo

Created: 03/09/2018 07:46
Updated: 02/17/2023 13:13
Changes: 03/09/2018 07:46 (67), 01/11/2020 15:01 (6), 02/17/2023 13:13 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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